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"Dieses Papier beschäftigt sich mit den Funktionen von Institutionen im Prozess der Vertrauensgenese in Beziehungen zwischen individuellen Akteuren (Managern) und kollektiven Akteuren (Firmen). Es werden mehrere Ansätze zur Konzeptualisierung von Vertrauen in organisationalen Kontexten und deren Annahmen darüber diskutiert, wie institutionelle Arrangements Prozesse der Vertrauensbildung beeinflussen. Vor dem Hintergrund dieser Diskussion wird eine tragfähige Perspektive zur Analyse des Verhältnisses zwischen Vertrauen und institutionellen Strukturen entwickelt. Vier Szenarien, in welchen der Einfluss von Institutionen für die Genese von Vertrauen besonders wichtig sein kann, werden genauer betrachtet: das frühe Entwicklungsstadium von Geschäftsbeziehungen; Fälle, in denen Institutionen relativ stark und verlässlich sind; Fälle, in denen Vertrauen schnell aufgebaut werden muss; und Fälle, in denen idiosynkratische Transaktionen stattfinden." (Autorenreferat)

"Several contributions of the special issue 'Conventions and institutions from a historical perspective' (HSR 36.4) show that the dynamics of institutions and conventions are different and therefore the analysis of their interactions is of crucial issue, as the author will show in a first part. In a second part, he proposes to analyze the use of the notion of 'convention of quality' and in particular, the link between this notion and the capabilities of experts, in a distributed cognition perspective." (author's abstract)

A precise model of social institutions is described comprising four dimensions: first, a macro-level of groups, types of actions, and related notions, second, a micro-level of underlying individuals and actions, together with suitable relations of intention, causal belief and power. Power is characterized in a new way emending proposals discussed recently. Third, the model contains intellectual representations of items on the macro- and micro-level. Fourth, it contains a dimension including the origin and development of what we call "social practices" (smallest units of socially relevant behaviour) which gives the model some historical depth. By putting all these items together, a powerful model with a wide range of applications is created. The claim associated with this model is that it applies to all social institutions which are similar to systems listed up in the introduction. The way of applying the model is discussed in detail on the basis of an abstract example.

"This paper aims at explaining the role and importance of the evolution of institutions for sustainable agri-environments during the transition process by referring to examples of agri-environmental problems faced in Central and Eastern European countries. It is often stated that the replacement of institutional structures in post socialist countries would bring a unique opportunity to implement new policies and institutions needed to ensure that economic growth is environmentally sustainable. This idea stems from the assumption that the breakdown of the socialist system resembles that (of the Schumpeterian type) of creative destruction - a process that incessantly revolutionizes economic structures from within. However, not all kinds of institutions, especially at local level, can simply be implemented, and even more, not incessantly. Instead, they evolve as a response to ecosystem and social system characteristics, and this is a rather slow process. A central question therefore is whether the required institutional arrangements for achieving sustainability in the area of agri-environmental resource management can be built more easily in periods of transition as they fill institutional gaps, or whether processes of transition make institution building a more difficult and far more time consuming task than previously thought. Above all, we want to find out, how these two processes of institution building at different scales affect the sustainable management of resources such as water and biodiversity in agriculture? It will become clear that the agri-environmental problem areas faced during transition are complex and dynamic and require adequate institutions both by political design and from the grassroots, to be developed by the respective actors involved. Transition from centrally planned to pluralistic systems has to be considered as a particular and in some respect non-typical process of institutional change. Popular theories of institutional change do not necessarily apply. The privatisation experience from many CEE countries will serve as an example. Finally, we will provide some examples of missing or insufficient interaction between political actors or agencies and people in CEE countries. Substantial investments into social and human capital, particularly regarding informal institutions are needed for institutions of sustainability to evolve." (author's abstract)

"This paper uses data from 20 OECD countries to investigate the impact of welfare state institutions (especially employment protection, wage bargaining and work incentives) on the functioning of the labour market both theoretically and empirically. It shows that the impact of welfare state institutions is not as clear-cut as the deregulationists' view suggests. This result may be surprising against the background of the common view that welfare state measures cause European employment problems but it is in line with the outcomes of many other economic studies. The reasons for the ambiguous effects of welfare state institutions are manifold but the most important reason is the complexity of the impacts. There are many side-effects or second-round effects of welfare state institutions which, although often neglected, prove to be very important in the real 'imperfect market' world. Many welfare state institutions only have a clear-cut negative effect against the background of the theoretical perfect market model." (author's abstract)